Fenwal 35-615526-227 3-Try Direct Spark Ignition Control Module 15-Sec TFI 30-SPP RMS 24V
The Fenwal 35-615526-227 is a heavy-duty actuator used to regulate fire/smoke dampers in a variety of HVAC systems. It uses two solenoids to shift the damper between three positions: open, closed, and smoke. This runs on 24V DC power. The actuator opens or closes the damper to its predetermined fail-safe position by system design when it detects a fire or smoke signal. This occurs by energizing the relevant solenoid. Applications like hospitals, high-rise buildings, and industrial facilities that demand dependable functioning and quick response times might find this device especially helpful. An extra degree of safety is provided by its Direct Spring Return DSI feature, which makes sure the damper stays in the fail-safe position even in the event of a power outage.